uxcell Plastic Unisex Rectangle Rimless Single Bridge Clip On Polarized Sunglasses Gray Great for those who already have a pair of prescription glasses and do not want to spend more for a pair of sunglasses. Easy to operate,just clip your glasses on it,they will protect your eyes as sunglasses. Lens Size(each) : 5.5 x 3.2cm / 2.17" x 1.26" (L*W) Easy to clip on glasses (not suitable for rimless glasses) Constructed of plastic lens,with a detailed design on top of the cross bar / bridge.